Commit 88872790 authored by Dani Liberman's avatar Dani Liberman Committed by Oded Gabbay
Browse files

accel/habanalabs: handle f/w reserved dram space request 



It is possible for FW to request reserved space in dram.
If the device supports this option, it will retrieve the size from the
f/w and will reserve it.

Currently we add the common code infrastructure to support it.

Signed-off-by: default avatarDani Liberman <dliberman@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent fa46c7bb

drivers/accel/habanalabs/common/firmware_if.c

+5 −0
Original line number Diff line number Diff line
@@ -2783,6 +2783,11 @@ static int hl_fw_dynamic_init_cpu(struct hl_device *hdev, 
				hdev->decoder_binning, hdev->rotator_binning);

		}



		if (hdev->asic_prop.support_dynamic_resereved_fw_size) {

			hdev->asic_prop.reserved_fw_mem_size =

				le32_to_cpu(fw_loader->dynamic_loader.comm_desc.rsvd_mem_size_mb);

		}



		return 0;

	}

drivers/accel/habanalabs/common/habanalabs.h

+4 −0
Original line number Diff line number Diff line
@@ -641,6 +641,7 @@ struct hl_hints_range { 
 * @glbl_err_cause_num: global err cause number.

 * @hbw_flush_reg: register to read to generate HBW flush. value of 0 means HBW flush is

 *                 not supported.

 * @reserved_fw_mem_size: size in MB of dram memory reserved for FW.

 * @collective_first_sob: first sync object available for collective use

 * @collective_first_mon: first monitor available for collective use

 * @sync_stream_first_sob: first sync object available for sync stream use
@@ -689,6 +690,7 @@ struct hl_hints_range { 
 * @dma_mask: the dma mask to be set for this device

 * @supports_advanced_cpucp_rc: true if new cpucp opcodes are supported.

 * @supports_engine_modes: true if changing engines/engine_cores modes is supported.

 * @support_dynamic_resereved_fw_size: true if we support dynamic reserved size for fw.

 */

struct asic_fixed_properties {

	struct hw_queue_properties	*hw_queues_props;
@@ -772,6 +774,7 @@ struct asic_fixed_properties { 
	u32				num_of_special_blocks;

	u32				glbl_err_cause_num;

	u32				hbw_flush_reg;

	u32				reserved_fw_mem_size;

	u16				collective_first_sob;

	u16				collective_first_mon;

	u16				sync_stream_first_sob;
@@ -808,6 +811,7 @@ struct asic_fixed_properties { 
	u8				dma_mask;

	u8				supports_advanced_cpucp_rc;

	u8				supports_engine_modes;

	u8				support_dynamic_resereved_fw_size;

};



/**

drivers/accel/habanalabs/include/common/hl_boot_if.h

+5 −0
Original line number Diff line number Diff line
@@ -570,6 +570,8 @@ struct lkd_fw_comms_desc { 
	__le64 img_addr;	/* address for next FW component load */

	struct lkd_fw_binning_info binning_info;

	struct lkd_fw_ascii_msg ascii_msg[LKD_FW_ASCII_MSG_MAX];

	__le32 rsvd_mem_size_mb; /* reserved memory size [MB] for FW/SVE */

	char reserved1[4];

};



enum comms_reset_cause {
@@ -596,6 +598,9 @@ struct lkd_fw_comms_msg { 
			__le64 img_addr;

			struct lkd_fw_binning_info binning_info;

			struct lkd_fw_ascii_msg ascii_msg[LKD_FW_ASCII_MSG_MAX];

			/* reserved memory size [MB] for FW/SVE */

			__le32 rsvd_mem_size_mb;

			char reserved1[4];

		};

		struct {

			__u8 reset_cause;